@Никита5D38 I think focus is your biggest issue. Make sure you always set a pre-focus point to get the general focus. You are likely not using a tripod either. I think perhaps you are trying to achieve shots with a camera (Canon PowerShot Sx540 HS) that only has so much capability. Are you shooting in RAW mode? You also need more color correction in some shots. Keep studying and trying!
thank you, unfortunately RAW is not available on this camera.
Focus is definitely a problem.